--- /dev/null
+use strict;
+use Test::More;
+
+#----------------------------------------------------------------------
+# Make sure subclasses can be themselves subclassed
+#----------------------------------------------------------------------
+
+BEGIN {
+ eval "use DBIx::Class::CDBICompat;";
+ if ($@) {
+ plan (skip_all => 'Class::Trigger and DBIx::ContextualFetch required');
+ next;
+ }
+ eval "use DBD::SQLite";
+ plan $@ ? (skip_all => 'needs DBD::SQLite for testing') : (tests => 6);
+}
+
+use lib 't/cdbi/testlib';
+use Film;
+
+INIT { @Film::Threat::ISA = qw/Film/; }
+
+ok(Film::Threat->db_Main->ping, 'subclass db_Main()');
+is_deeply [ sort Film::Threat->columns ], [ sort Film->columns ],
+ 'has the same columns';
+
+my $bt = Film->create_test_film;
+ok my $btaste = Film::Threat->retrieve('Bad Taste'), "subclass retrieve";
+isa_ok $btaste => "Film::Threat";
+isa_ok $btaste => "Film";
+is $btaste->Title, 'Bad Taste', 'subclass get()';